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A2 Clip for Side-Delivered Transcatheter Mitral Valve Prosthesis

a prosthetic and mitral valve technology, applied in the field of a2 clip for a side-delivered prosthetic mitral valve, can solve the problems of allowing some regurgitation, affecting the repair effect, and not fully correcting the valve problem, so as to achieve the effect of reducing the strain of wire cells

Active Publication Date: 2020-09-17
VDYNE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]Use of an side-delivered transcatheter mitral valve replacement allows a very large diameter valve to be delivered and deployed from the inferior vena cava trans-septally into the mitral valve, e.g. has a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.
[0031]In another preferred embodiment, the invention provides a valve as described and claimed, wherein the annular support frame is comprised of a plurality of compressible wire cells having a orientation and cell geometry substantially orthogonal to the central vertical axis to minimize wire cell strain when the annular support frame is configured in a vertical compressed configuration, a rolled compressed configuration, or a folded compressed configuration.

Problems solved by technology

For this reason it did not fully correct the valve problem, only alleviate the symptoms.
However, the struts of these valves tended to fracture from fatigue over time.
However, a downside of this design is that it allows some regurgitation.
Additionally, a problem with stent-style replacement valves is that they often continue to have the regurgitation or leakage problems of prior generations of valves, as well as require expensive materials engineering in order to cope with the 100's of millions of cycles encountered during just a few years of normal heart function.

Method used

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  • A2 Clip for Side-Delivered Transcatheter Mitral Valve Prosthesis
  • A2 Clip for Side-Delivered Transcatheter Mitral Valve Prosthesis
  • A2 Clip for Side-Delivered Transcatheter Mitral Valve Prosthesis

Examples

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example

[0176]The transcatheter prosthetic heart valve may be percutaneously delivered using a transcatheter process via the femoral through the IVC, carotid, sub-xyphoid, intercostal access across the chest wall, and trans-septal to the mitral annulus through the fossa ovalis.

[0177]The device is delivered via catheter to the right or left atrium and is expanded from a compressed shape that fits with the internal diameter of the catheter lumen. The compressed valve is loaded external to the patient into the delivery catheter, and is then pushed out of the catheter when the capsule arrives to the atrium. The cardiac treatment technician visualizes this delivery using available imaging techniques such as fluoroscopy or ultrasound.

[0178]In a preferred embodiment the valve self-expands upon release from the catheter since it is constructed in part from shape-memory material, such as Nitinol®, a nickel-titanium alloy, or a cobalt-chromium alloy, alloys used in biomedical implants.

[0179]In anothe...

example — manufacturing process

Example—Manufacturing Process

[0181]In a preferred embodiment the invention includes a process for manufacturing a side-delivered transcatheter prosthetic heart valve frame, comprising:[0182](i) using additive or subtractive metal or metal-alloy manufacturing to produce[0183]a self-expanding annular support frame,[0184]wherein the additive metal or metal-alloy manufacturing is 3D printing or direct metal laser sintering (powder melt), and[0185]wherein the subtractive metal or metal-alloy manufacturing is photolithography, laser sintering / cutting, CNC machining, electrical discharge machining.

[0186]In another preferred embodiment, there is provided a process for manufacturing a side-delivered transcatheter prosthetic heart valve frame, further comprising the steps of: (ii) mounting a flow control component within the valve frame, said flow control component configured to permit blood flow along the central vertical axis through an inflow end of the flow control component and block blo...

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Abstract

The invention relates to an A2 clip for a side-delivered prosthetic mitral valve where the A2 clip is extended using a guide wire to capture native mitral leaflet and / or chordae tissue and withdrawing the guide wire contracts the A2 clip and pins the native tissue against the subannular sidewall of the prosthetic valve.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Provided by Application Data Sheet per USPTO rules.STATEMENT REGARDING FEDERALLY SPONSORED R&D[0002]Provided by Application Data Sheet per with USPTO rules.NAMES OF PARTIES TO JOINT RESEARCH AGREEMENT[0003]Provided by Application Data Sheet per with USPTO rules.REFERENCE TO SEQUENCE LISTING[0004]Provided by Application Data Sheet per USPTO rules.STATEMENT RE PRIOR DISCLOSURES[0005]Provided by Application Data Sheet per USPTO rules.BACKGROUND OF THE INVENTIONField of the Invention[0006]The invention relates to an extendable A2 clip for a side-delivered transcatheter mitral valve replacement (A61F2 / 2412).Description of the Related Art[0007]In 1952 surgeons implanted the first mechanical heart valve, a ball valve that could only be placed in the descending aorta instead of the heart itself. For this reason it did not fully correct the valve problem, only alleviate the symptoms. However it was a significant achievement because it proved that ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/24
CPCA61F2220/0033A61F2210/0014A61F2/2418A61F2250/0098A61F2/2439A61F2220/0008A61F2230/0069A61F2/2457A61F2230/0052A61F2250/0039
Inventor CHRISTIANSON, MARKVIDLUND, ROBERTKRAMER, SCOTT
Owner VDYNE INC
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